Pigtail for optimal aortic valvular complex imaging and alignment
First Claim
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1. A device, comprising:
- a catheter comprising an interior wall and an exterior wall,wherein the catheter has a proximal portion, a distal portion, and a center portion between the proximal portion and the distal portion,wherein the interior wall forms a central lumen along the longitudinal axis of the catheter,wherein the interior wall and the exterior wall form a single peripheral lumen around the central lumen along the longitudinal axis of the catheter,wherein the interior wall and the exterior wall form at least three distal branches at a fixed branch point of the distal portion of the catheter, wherein the central lumen terminates in a fixed opening at the fixed branch point, and the at least three distal branches fan out and retain an orientation at the fixed branch point, spaced from each other, when unrestrained;
wherein the single peripheral lumen branches into at least three peripheral lumen branches inside the at least three distal branches, wherein the at least three peripheral lumen branches are all in fluid communication with each other and the single peripheral lumen; and
wherein each of the at least three distal branches comprises one or more side openings at or near the distal end.
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Abstract
Devices, systems and methods using two, three or more pigtails for precisely imaging an aortic valve complex with minimal contrast and/or for advancing an instrument, such as a wire, or device, such as a transcatheter valve, across an aortic valve. These devices, systems and methods may be used to diagnose and/or treat patients with aortic stenosis, other valvular heart disease or other cardiovascular or non cardiovascular disease, facilitating precise contrast or drug or device delivery, precise pressure measurement and/or precise drainage or sampling.
93 Citations
22 Claims
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1. A device, comprising:
a catheter comprising an interior wall and an exterior wall, wherein the catheter has a proximal portion, a distal portion, and a center portion between the proximal portion and the distal portion, wherein the interior wall forms a central lumen along the longitudinal axis of the catheter, wherein the interior wall and the exterior wall form a single peripheral lumen around the central lumen along the longitudinal axis of the catheter, wherein the interior wall and the exterior wall form at least three distal branches at a fixed branch point of the distal portion of the catheter, wherein the central lumen terminates in a fixed opening at the fixed branch point, and the at least three distal branches fan out and retain an orientation at the fixed branch point, spaced from each other, when unrestrained; wherein the single peripheral lumen branches into at least three peripheral lumen branches inside the at least three distal branches, wherein the at least three peripheral lumen branches are all in fluid communication with each other and the single peripheral lumen; and wherein each of the at least three distal branches comprises one or more side openings at or near the distal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
Specification